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Question

I am making publication via [FBWebDialogs presentFeedDialogModally...]
It works fine.
But if I delete application in the facebook settings and try make post again, I

Answer 1

Seems like a bug in the SDK.

Try specifying your app_id in the parameters dictionary passed to [FBWebDialogs presentFeedDialogModallyWithSession:parameters:handler]

The documentation says "Required, but automatically specified by most SDKs" however I found it was not happening automatically.

Answer 2

You can either add your FacebookAppID to the passed parameters, as nick suggests. Or make sure your FacebookAppID is in your plist info file.

Add a string key: FacebookAppID with the value of your Facebook App ID. Then the SDK can automatically add your app id for use everywhere else.

Answer 3

You can get this error when your app is not available to the public (big slider on "Status & Review" page of the Facebook developer control panel says "NO"), and you have not added the account you log in with in the app as a test user.

I had this situation where I had not yet added my test user (I am using a difference account than my personal one for testing) as a test user to the app.

You can add your test users in the "Roles" page of the Facebook developer control panel.